Home / 81,236.50-121,847.02-25,061.52

Finding the Fourth Proportional to 81,236.50, 121,847.02 and 25,061.52

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Solution

The fourth proportional to 81,236.50, 121,847.02 and 25,061.52 is: 37,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,236.50 : 121,847.02 = 25,061.52 : x
  2. Step 2: Convert to fraction form
    81,236.50/121,847.02 = 25,061.52/x
  3. Step 3: Cross multiply
    81,236.50x = 121,847.02 × 25,061.52
  4. Step 4: Simplify right side
    81,236.50x = 3,053,671,528.67
  5. Step 5: Solve for x
    x = 3,053,671,528.67/81,236.50
  6. Step 6: Final answer
    x = 37,589.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.